David Tonnessen/Pacific Coast News
06/14/2011 AT 06:00 AM EDT
left his wife and son
at home for a night out at the Chateau Marmont
. After greeting friends on the patio, the Brit made his way to his own table in the corner and kept a low profile. Still, Bloom was laughing a lot with his friends. Says an onlooker: "The mood of the whole table was very jovial, and Bloom seemed to enjoy his night."